Subclass InputVerifier : Document Event « Swing JFC « Java






  1. Java
  2. Swing JFC
  3. Document Event

Subclass InputVerifier

    

 
import javax.swing.InputVerifier;
import javax.swing.JComponent;
import javax.swing.JTextField;

public class Main {

  public static void main(String[] args) {
    JTextField tf = new JTextField("");
    tf.setInputVerifier(new MyInputVerifier());

  }
}

class MyInputVerifier extends InputVerifier {
  public boolean verify(JComponent input) {
    JTextField tf = (JTextField) input;
    String pass = tf.getText();
    return pass.equals("AA");
  }
}








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